CVSS base score
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
What the vulnerability does
The Gutenverse – Ultimate WordPress FSE Blocks Addons & Ecosystem plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'imageLoad' parameter in versions up to, and including, 3.4.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Explanation of Vulnerability in Simple Terms
Gutenverse versions up to 3.4.6 contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in the browsers of other site visitors, including administrators. The vulnerability affects the plugin's block editor functionality and can impact site integrity and user data.
What an attacker can do
Inject malicious scripts that run in other users' browsers, potentially stealing data or performing actions as those users.
Potential impact on your site
Authenticated users can inject persistent malicious code affecting all site visitors. Administrators and other users are at risk of session hijacking or credential theft.
Conditions required to exploit
Attacker must have a low-privilege WordPress account (e.g., contributor or editor role). No user interaction required from victims.
Key dates
External resources
Related vulnerabilities
